Effect of the surfactant head-group size dependence of the dye-surfactant interactions on the lyotropic uniaxial to biaxial nematic phase transitions
作者:Erol Akpinar、Nazli Uygur、Oznur Demir Ordu、Dennys Reis、Antônio Martins Figueiredo Neto
DOI:10.1016/j.molliq.2021.115842
日期:2021.6
surfactants in lyotropic mixtures have been investigated for the stabilization of the different lyotropic nematic phases. Sunset Yellow doped mixtures of DAABr surfactants, with different head-group size, were studied by polarizing optical microscopy, laser conoscopy, and small-angle X-ray scattering. It was found that the extent of the interaction of Sunset Yellow with DAABr surfactant head groups on micelle
在本研究中,已经研究了阴离子偶氮染料Sunset Yellow与十二烷基烷基溴化铵(DAABr)表面活性剂在溶致混合物中的相互作用,以稳定不同的溶致向列相。通过偏光光学显微镜,激光显微镜和小角X射线散射研究了日落黄掺杂的具有不同头基大小的DAABr表面活性剂的混合物。已经发现,日落黄与胶束表面上DAABr表面活性剂头基的相互作用程度通过引起胶束结构参数的变化而影响不同向列相的稳定。结果还表明,在三个向列相中,胶束表面曲率应该不同。